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8.2 Open the folder downloaded from page vii for extra
questions of Mastery Q 8.2.
1. In the diagram, POS and UOR are straight lines. U T
OQ is the bisector of ∠POR. ∠POU and ∠UOT are P x
complementary angles. Find the values of x and y. 56°
O
y S
Q
R

2. In the diagram, POS, QOT and UOR are straight lines. U T
Find the value of y.
5y 2y
P O S
5y
Q R

3. In the diagram, POS, QOT and ROU are straight lines. U
Find the value of x. P 4x T
40°
x O
Q S
R

8.3 Angles related to Parallel Lines and Transversals
CHAPTER
8
What are parallel lines and transversals? LEARNING
STANDARDS
Recognise, explain and
Parallel lines can be denoted using draw parallel lines
arrow heads ‘ ’ as shown in the and transversals.
photograph.
A straight line that intersects two or more straight lines is
known as a transversal. For instance, straight line AB shown in
the photograph is a transversal.

Self Practice 8.3a

1. Copy the following objects. Draw and mark parallel lines on the copied objects.
(a) (b) (c)

188
Chapter 8

08 TB Math F1.indd 188 11/10/16 12:17 PM